#!/bin/bash
#
# validate_controlled_conf.agi
#
# See if the desired ID is in the controlled conference database.
# Return boolean VALID_PIN and numerical id CONTROLLED_CONF_ID if
# it is found.
#
# Use the Linux "lockfile" command to control concurrent access
#
#set -x

declare -a array
while read -e ARG && [ "$ARG" ] ; do
	array=(` echo $ARG | sed -e 's/://'`)
	export ${array[0]}=${array[1]}
done

checkresults() {
	while read line
	do
	case ${line:0:4} in
	"200 " ) echo $line >&2
	         return;;
	"510 " ) echo $line >&2
	         return;;	
	"520 " ) echo $line >&2
	         return;;
	*      ) echo $line >&2;;	#keep on reading those Invlid command
					#command syntax until "520 End ..."
	esac
	done
}


# Have conference IDs 111 - 116.  Our "database" looks like this:
#	111	0-N
#	112	0-N
#	113	0-N
#	.
#	.
# 2nd column is number of people currently in the conference

DBFILE=/var/lib/asterisk/agi-bin/controlledconf_id_db
LOCKFILE=/tmp/controlledconf_id_db.lock
TMPFILE=/tmp/controlledconf_id_db.tmp

IDWANTED=$1

lockfile $LOCKFILE

echo "SET VARIABLE VALID_PIN F"
checkresults

while read DBLINE
do
    THISID=`echo $DBLINE | awk '{print $1}'`
    if [ $THISID = $IDWANTED ]
    then
	NUMCONFEREES=`echo $DBLINE | awk '{print $2}'`
	if [ $NUMCONFEREES -gt 0 ]
	then
		echo "SET VARIABLE VALID_PIN T"
		checkresults
		echo "SET VARIABLE CONTROLLED_CONF_ID $IDWANTED"
		checkresults
	fi
    fi
done < $DBFILE

rm -f $LOCKFILE
exit 0;